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Statistical errors in equivalent widths -- A clarification

2019/05/22 by Thomas Eversberg, Eversberg, Thomas
Physics and Astronomy · #FOS: Physical sciences #Instrumentation and Methods for Astrophysics (astro-ph.IM) #astro-ph.IM

paper · pdf · doi:10.48550/arxiv.1905.09121

3 pages

arxiv created 2019/05/22 · arxiv updated 2019/05/23

Abstract

In a recent mathematical approach, Netzel (2018) proposes a method for determining the statistical error of spectral line equivalent widths. Using various approximations, he derives a determination equation that differs significantly from earlier approaches by Vollmann & Eversberg (2006) and Chalabaev & Mailard (1983) and evaluates these works with his approach. Several points stand out, which have a not to be neglected influence on the evaluation of this approach.

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